Gbindiug-mill



B. W. LEONARD.

. Grinding Mill. No. 19,093. Patented Jan. 12, I858.

UNITE earns AT FFIQE.

BURTON W. LEONARD, OF BRIDGEPORT, CONNECTICUT.

GRINDING-MILL.

Specification of Letters Patent No. 19,093, dated January 12, 1858.

To all whom 'it may concern:

Be it known that I, BURTON l/V. Lecture), of Bridgeport, county ofFairfield, and State of Connecticut, have invented a new and ImprovedMode of Constructing Grist- Mills; and I do hereby declare that thefollowing is a full and exact description thereof, reference being hadto the accompanying drawings and to the figures of reference markedthereon.

The nature of my invention consists in hanging the bed stone in theframe in such a way and manner as to give it a free and easy vibrationor balance. Also in the manner of connecting the bail or carrier to thespindle, and also in the manner of constructing the step or oil cups insuch a way as to prevent the points heating or running dry.

To enable others skilled in the art to make and use my invention I willproceed to describe its construct-ion and operation.

I construct my mill frames in any of the known forms and apply theretothe manner of hanging or securing the stones as herein set forth, alsothe pecliar form or arrangement of step or oil chamber.

Figures 1 and 4 is the spindle with bail and step connected, passingthrough the bed stone 0. Fig. 2 is the bed stone as hung in the frame,Fig. 3 the bottom step or cup. Fig. 4 is a vertical section through themiddle of the spindle and improved parts.

A of Figs 1 and 4 is the spindle.

B is a collar secured to the spindle at any required point which forms ashoulder for the bail or carrier C.

D is a thread or screw cut on the spindle A.

C is a bail or carrier with center hub and arms connected, the endsbeing round and inserted in the eye of the runner stone admitting it toroll or vibrate on the same.

E is a hole through the hub of bail C in which a thread or screw is cutto receive the corresponding thread F and F are two bolts passingthrough the collar B, and screws into the top or hub of carrier C.

G is a hole or bore in the step Fig. 3, at the bottom of which isdropped a loose button H of steel or other metal on which the end of thesteel point I rests.

H is a ring or bush inserted in the step Fig. 3 at such a point as toform a receiving oil cup I and oil chambers L.

M is a slot or groove cut on the outer edge of bush I-l through whichthe oil can pass from cup I to chamber L and point I.

N is the frame in which the bed stone 0 is hung.

P is a rim with two opposite points or bearings (1 g secured to theouter surface of rim projecting outward and hangs in frame N so as tobalance or vibrate on the same.

R R are two opposite points or bearings secured on the skirt of bedstone O and hung in rim P so as to balance or vibrate in the same; S Sthe top point with same arrangement of oil cup as shown in Fig. 8; T Tthe pulley to which the driving belt is attached.

l/Vhat I claim as my invention and desire to secure by Letters Patent isThe arrangement for connecting the bail or carrier to the spindle alsothe manner of hanging the bed. stone in the frame by means of auniversal joint or balance, also the manner of constructing the step andoil cups as herein set forth and described.

BURTON W. LEONARD.

Witnesses:

FREDERICK M. LOCKWOOD, HARRY MAY.

